Feeding issues with original mags. - Tikka T1X .22LR 10 Rounds Rifle Magazine

Used Aguila ammo with my new Tika T1X….First of all, doesn’t hold 10 rounds, only 9… Aguila had heavier wax on bullets which fowled the action to the point the action would work. Had to clean the wax and lead shavings out, then switched to Cci mini mags. Seemed to solve the problem temporarily. The springs seemed to loosen up and weaken after 500 rounds. Might have to store unloaded. Also have 5 round extensions and 15 round mags on back order. $35 for extension, and $80 for metal 15 rd mags! Insane!
For a $600 22lr gun, I would expect a little better performance. When it shoots, it’s a tack on driver.